diff --git a/app/AdminSettled/Controllers/SupplierController.php b/app/AdminSettled/Controllers/SupplierController.php
index 3d6d2d8..a9b95c8 100644
--- a/app/AdminSettled/Controllers/SupplierController.php
+++ b/app/AdminSettled/Controllers/SupplierController.php
@@ -72,7 +72,7 @@ class SupplierController extends AdminController
             $form->text('contact_phone')->required()->maxLength(13);
 
 			$contract_template = Storage::disk('public')->url(AdminSetting::val('settled_supplier_contract'));
-			$form->image('contract')->required()
+			$form->image('contract')->required()->uniqueName()
 				->help('请先 <a target="_blank" href="' . $contract_template . '" download="【易游天下】供应商入驻合同模板">下载入驻合同</a> 并打印，填写完毕之后盖好公章再上传。');
 
 			$agreement_template = Storage::disk('public')->url(AdminSetting::val('settled_supplier_agreement'));